CN214407037U

CN214407037U - Temperature regulating device for pig iron steelmaking process

Info

Publication number: CN214407037U
Application number: CN202023159819.2U
Authority: CN
Inventors: 陈禹; 刘刚; 闫军; 王辉; 张广峰
Original assignee: Jiangsu Binxin Steel Group Co Ltd
Current assignee: Jiangsu Binxin Steel Group Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-15
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a temperature regulation apparatus for pig iron steelmaking technology, the induction cooker comprises a cooker bod, it has the air-supply line of installing the control valve to peg graft in the bottom of furnace body one side outer wall, and the air-supply line keeps away from the one end of furnace body and pegs graft and have combustion-supporting fan, combustion-supporting fan keeps away from the one end of air-supply line and pegs graft and have the connecting pipe, and the connecting pipe keeps away from the one end of combustion-supporting fan and peg graft and have the steering joint, the top that turns to the joint is pegged graft and is had the spiral pipe, and the top of spiral pipe is pegged graft and is had fixed pipe, fixed pipe is all pegged graft with the connecting pipe and is had the water tank. The utility model discloses a combustion fan is to the inside delivered air of furnace body, and the air gets into through fixed pipe, through spiral pipe and connecting pipe, gets into the furnace body by combustion fan and air-supply line again inside, through the speed that the control valve on the air-supply line controlled the air flow, and the content of oxygen in the inside air of control entering furnace body changes the inside environment that burns of furnace body, realizes carrying out the purpose of adjusting to the inside temperature of furnace body.

Description

Temperature regulating device for pig iron steelmaking process

Technical Field

The utility model relates to a pig iron steelmaking technology technical field especially relates to a temperature regulation apparatus for pig iron steelmaking technology.

Background

Steelmaking refers to controlling the carbon content (generally less than 2%), eliminating P, S, O, N and other harmful elements, retaining or increasing Si, Mn, Ni, Cr and other beneficial elements and adjusting the proportion among the elements to obtain the best performance. The high temperature furnace of the refinery is operated at 2000 ℃ and the melting point of iron is 1539 ℃. The pig iron for steel making is put into a steel making furnace to be smelted according to a certain process, and the steel is obtained. The steel products include steel ingots, continuous casting billets, and direct casting into various steel castings. The term "steel" generally means steel rolled into various kinds of steel materials. Steel belongs to the ferrous metal but steel is not completely equivalent to ferrous metal.

The temperature is an important parameter by monitoring the pig iron steelmaking production process, and the temperature system mainly refers to process temperature control and end point temperature control. Any steel grade has certain requirements on the temperature. The control of the superheat degree of molten steel is an important factor influencing the yield and quality of casting blanks. When the superheat degree of the molten steel is controlled properly, the equiaxial crystal area of the casting blank is promoted to increase, and the structure of the casting blank is compact, so that the center segregation and the porosity of the casting blank are reduced, and the quality and the yield of the casting blank are optimized. The overheating degree of the molten steel is too low, so that the surface of a casting blank is cracked, and the casting can be interrupted and the production can be stopped when the surface of the casting blank is seriously cracked; when the superheat degree is high, the casting blank is forced to reduce the pulling speed to avoid steel leakage, the yield of a casting machine is reduced, columnar crystals of the casting blank are promoted to develop, the center segregation and the looseness of the casting blank are caused, the phenomenon that the mold is not boiled in the early stage of casting, the mold is turned over greatly in the later stage, the solid shell is too thin, and the like can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a temperature adjusting device for a pig iron steelmaking process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a temperature adjusting device for a pig iron steelmaking process comprises a furnace body, wherein an air inlet pipe provided with a control valve is inserted into the bottom of the outer wall on one side of the furnace body in an inserting manner, a combustion-supporting fan is inserted into one end, away from the furnace body, of the air inlet pipe, a connecting pipe is inserted into one end, away from the air inlet pipe, of the combustion-supporting fan, a steering joint is inserted into one end, away from the combustion-supporting fan, of the connecting pipe, a spiral pipe is inserted into the top of the steering joint in an inserting manner, a fixed pipe is inserted into the top end of the spiral pipe, a water tank is inserted into the fixed pipe and the connecting pipe, a water outlet pipe is inserted into the bottom of the outer wall on one side of the water tank, a water inlet pipe is inserted into the top of the outer wall on the other side of the water tank, a first fixed block is fixedly connected to the other end of the top of the water tank, a first air inlet pipe is inserted into the top of the furnace body in an inserting manner, and the top fixedly connected with of furnace body and the second fixed block that first intake pipe outer wall cover was established, the other end of first intake pipe is pegged graft and is had the air exhauster, and the bottom of air exhauster is pegged graft and is had the second intake pipe.

Preferably, the front of water tank has seted up the opening, and the equal fixed mounting of open-ended inner wall all around has transparent observation window.

Preferably, the outer wall of one end of the water tank far away from the water outlet pipe is fixedly provided with a control valve, and the outer wall of one end of the water tank far away from the water inlet pipe is fixedly provided with a control valve.

Preferably, the jack has all been seted up with one side outer wall of second fixed block to one side outer wall of first fixed block, and two jacks all with first intake pipe looks adaptation.

Preferably, water is injected into the water tank, and the bottom end of the second air inlet pipe is located below the water surface.

Preferably, the combustion-supporting fan and the exhaust fan are both connected with a switch located on the outer wall of one side of the water tank through a wire, and the switch is connected with an external power supply through a wire.

The utility model has the advantages that:

1. air is conveyed to the interior of the furnace body through the combustion fan, enters through the fixed pipe, passes through the spiral pipe and the connecting pipe, enters into the interior of the furnace body through the combustion fan and the air inlet pipe, the flowing speed of the air is controlled through a control valve on the air inlet pipe, the content of oxygen in the air entering into the interior of the furnace body is controlled, the environment of full combustion in the interior of the furnace body is changed, and the purpose of adjusting the temperature in the interior of the furnace body is achieved;

2. waste gas that produces the furnace body through the air exhauster carries the aquatic of intaking in the case through first intake pipe and second intake pipe, waste gas is in the in-process through outlet duct exhaust, water filtration that partial harmful component and high temperature pass through in the water tank is stayed, be favorable to reducing the pollution to the surrounding environment, be favorable to the environmental protection to discharge, water heats through the heat in the absorption waste gas simultaneously, the messenger is heated through the air of spiral pipe and connecting pipe, the air after the heating enters into the furnace body, be favorable to improving the abundant of the inside burning of furnace body.

Drawings

FIG. 1 is a schematic side view of a partial cross-sectional structure of a temperature adjustment apparatus for a pig iron steelmaking process according to the present invention;

fig. 2 is a schematic side view of the temperature adjusting device for pig iron steelmaking process according to the present invention.

In the figure: the device comprises a furnace body 1, an air inlet pipe 2, a combustion-supporting fan 3, a connecting pipe 4, a steering joint 5, a spiral pipe 6, a fixed pipe 7, a water tank 8, a water outlet pipe 9, a water inlet pipe 10, an air outlet pipe 11, a first fixed block 12, a first air inlet pipe 13, a second fixed block 14, an exhaust fan 15 and a second air inlet pipe 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a temperature adjusting device for pig iron steelmaking process comprises a furnace body 1, an air inlet pipe 2 provided with a control valve is inserted in the bottom of the outer wall of one side of the furnace body 1, a combustion fan 3 is inserted in one end of the air inlet pipe 2 away from the furnace body 1, a connecting pipe 4 is inserted in one end of the combustion fan 3 away from the air inlet pipe 2, a steering joint 5 is inserted in one end of the connecting pipe 4 away from the combustion fan 3, a spiral pipe 6 is inserted in the top of the steering joint 5, a fixed pipe 7 is inserted in the top end of the spiral pipe 6, a water tank 8 is inserted in both the fixed pipe 7 and the connecting pipe 4, a water outlet pipe 9 is inserted in the bottom of the outer wall of one side of the water tank 8, an opening is arranged on the front side of the water tank 8, transparent observation windows are fixedly arranged on the inner walls around the opening, air is conveyed to the inside of the furnace body 1 through the combustion fan 3, and enters through the fixed pipe 7, the air enters the furnace body 1 through the spiral pipe 6 and the connecting pipe 4 and then through the combustion fan 3 and the air inlet pipe 2, the flow rate of the air is controlled through the control valve on the air inlet pipe 2, the content of oxygen in the air entering the furnace body 1 is controlled, the environment of full combustion in the furnace body 1 is changed, and the purpose of adjusting the temperature in the furnace body 1 is realized;

a water inlet pipe 10 is inserted at the top of the outer wall of the other side of the water tank 8, an air outlet pipe 11 is inserted at one end of the top of the water tank 8, a control valve is fixedly installed at the outer wall of one end of the water outlet pipe 9 far away from the water tank 8, a control valve is fixedly installed at the outer wall of one end of the water inlet pipe 10 far away from the water tank 8, a first fixed block 12 is fixedly connected at the other end of the top of the water tank 8, a first air inlet pipe 13 is sleeved on the outer wall of one side of the first fixed block 12, one end of the first air inlet pipe 13 is inserted with the top of the furnace body 1, a second fixed block 14 sleeved with the outer wall of the first air inlet pipe 13 is fixedly connected at the top of the furnace body 1, jacks are respectively formed in the outer wall of one side of the first fixed block 12 and the outer wall of one side of the second fixed block 14, the two jacks are respectively matched with the first air inlet pipe 13, an exhaust fan 15 is inserted at the other end of the first air inlet pipe 13, and a second air inlet pipe 16 is inserted at the bottom of the exhaust fan 15, the inside of water tank 8 is poured into there is water, and the bottom of second intake pipe 16 is located the below of the surface of water, combustion-supporting fan 3 all is connected with the switch that is located on 8 one side outer walls of water tank through the wire with air exhauster 15, and the switch is connected with external power source through the wire, the waste gas that produces furnace body 1 through air exhauster 15 carries the aquatic in the case 8 of intaking through first intake pipe 13 and second intake pipe 16, waste gas is at the in-process through outlet duct 11 exhaust, partial harmful component and high temperature are passed through the water filtration in the water tank 8 and are stayed, be favorable to reducing the pollution to the surrounding environment, be favorable to the environmental protection and discharge, water heats up through the heat that absorbs in the waste gas simultaneously, make the air through spiral pipe 6 and connecting pipe 4 heated, the air after the heating enters into furnace body 1, be favorable to improving the abundant of 1 inside burning of furnace body.

The working principle is as follows: air is conveyed to the inside of the furnace body 1 through the combustion fan 3, the air enters through the fixed pipe 7, passes through the spiral pipe 6 and the connecting pipe 4, then enters the inside of the furnace body 1 through the combustion fan 3 and the air inlet pipe 2, the flowing speed of the air is controlled through the control valve on the air inlet pipe 2, the content of oxygen in the air entering the inside of the furnace body 1 is controlled, the environment of full combustion in the inside of the furnace body 1 is changed, the purpose of adjusting the temperature in the inside of the furnace body 1 is realized, waste gas generated by the furnace body 1 is conveyed into water in the water inlet tank 8 through the first air inlet pipe 13 and the second air inlet pipe 16 through the exhaust fan 15, part of harmful components and high temperature are filtered and retained through water in the water tank 8 in the process of discharging the waste gas through the air outlet pipe 11, the pollution to the surrounding environment can be reduced, meanwhile, the water is heated through absorbing heat in the waste gas, so that the air passing through the spiral pipe 6 and the connecting pipe 4 is heated, the heated air enters the furnace body 1, and the combustion sufficiency in the furnace body 1 can be improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A temperature regulation device for a pig iron steelmaking process comprises a furnace body (1) and is characterized in that an air inlet pipe (2) provided with a control valve is spliced at the bottom of the outer wall of one side of the furnace body (1), a combustion-supporting fan (3) is spliced at one end, far away from the furnace body (1), of the air inlet pipe (2) of the combustion-supporting fan (3), a connecting pipe (4) is spliced at one end, far away from the combustion-supporting fan (3), of the connecting pipe (4), a steering joint (5) is spliced at one end, the top of the steering joint (5) is spliced with a spiral pipe (6), the top end of the spiral pipe (6) is spliced with a fixed pipe (7), a water tank (8) is spliced between the fixed pipe (7) and the connecting pipe (4), a water outlet pipe (9) is spliced at the bottom of the outer wall of one side of the water tank (8), a water inlet pipe (10) is spliced at the top of the outer wall of the other side of the water tank (8), and the one end at water tank (8) top is pegged graft and is had outlet duct (11), the other end fixedly connected with first fixed block (12) at water tank (8) top, and first fixed block (12) one side outer wall cover is equipped with first intake pipe (13), the one end of first intake pipe (13) is pegged graft with the top of furnace body (1), and second fixed block (14) that the top fixedly connected with of furnace body (1) and first intake pipe (13) outer wall cover were established, the other end of first intake pipe (13) is pegged graft and is had air exhauster (15), and pegs graft and have second intake pipe (16) bottom of air exhauster (15).

2. The temperature regulating device for the pig iron steelmaking process as claimed in claim 1, wherein the front face of the water tank (8) is provided with an opening, and the inner walls of the periphery of the opening are fixedly provided with transparent observation windows.

3. The temperature regulating device for the pig iron steelmaking process as claimed in claim 1, characterized in that a control valve is fixedly mounted on the outer wall of one end of the water outlet pipe (9) far away from the water tank (8), and a control valve is fixedly mounted on the outer wall of one end of the water inlet pipe (10) far away from the water tank (8).

4. The temperature adjusting device for the pig iron steelmaking process as claimed in claim 1, wherein the outer wall of one side of the first fixing block (12) and the outer wall of one side of the second fixing block (14) are both provided with insertion holes, and both insertion holes are adapted to the first air inlet pipe (13).

5. The thermostat for a pig iron steelmaking process as claimed in claim 1, characterized in that the interior of the water tank (8) is filled with water and the bottom end of the second inlet pipe (16) is located below the water surface.

6. The temperature regulating device for the pig iron steelmaking process as claimed in claim 1, characterized in that the combustion fan (3) and the exhaust fan (15) are connected with a switch on the outer wall of one side of the water tank (8) through leads, and the switch is connected with an external power supply through leads.